thank you all for your input. I was able to build the following excel sheet based on basic heat transfer principles...i had to make some assumptions (constant Cp for gas, assumed thermal conductivity for soil (did a hi and a lo case), did not include heat loss due to convection, but i think i...
I am trying to plot a temperature profile along a buried natural gas pipeline. Pipe line is buried 36", Soil temp is 45F, inlet temp is 60F @ 700 psi, flow-rate is 60,000,000 scf/d (60 MMSCFD)..it is a 6" std .280" X52 FBE Durabond coated 3-5 mil thick steel pipeline, 5 miles long.